Medium Denial of service

CVE-2026-115395 — Ghidra 10.3 before 12.2 Denial of Service via ThemeReader.readZipTheme()

Ghidra 10.3 before 12.2 contains a resource allocation without limits vulnerability in ThemeReader.readZipTheme() that extracts unlimited theme ZIP entries to the images directory. Attackers can persuade users to import a crafted theme archive with many small files, exhausting inodes and disk space to deny service to the host.

Published Oct 22, 2026 · Updated Oct 23, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: VulnCheck

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.1% (30-day exploitation probability)+0
Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.12%

ahead of 2% of scored CVEs · Oct 28, 2026

Affects

Nationalsecurityagency

Ghidra

CVSS base

5.5

Medium · 3 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Nationalsecurityagency Ghidra).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
Search available logs for exploit probes matching the vulnerability class (denial of service), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Nationalsecurityagency	Ghidra	≥ 10.3 and < 12.2	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

Low

Privileges required

None

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
6.8	CVSS 4.0	Medium	—	—	disclosure@vulncheck.com via NIST National Vulnerability Database
6.8	CVSS 4.0	Medium	—	—	VulnCheck via CVE Program (cve.org) e CISA ADP
5.5	CVSS 3.1	Medium	1.8	3.6	disclosure@vulncheck.com via NIST National Vulnerability Database
5.5	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories
5.5	CVSS 3.1	Medium	—	—	VulnCheck via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (score shown at the top: disclosure@vulncheck.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-770 · Allocation of Resources Without Limits or Throttling

Other CVEs with this weakness →

EPSS over time FIRST

Oct 23, 2026 → Oct 28, 2026 · 6 reading(s) · max 0.12%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Track CPU/memory spikes and availability drops correlated with request patterns.

endpoint telemetry (EDR)resource metrics

Timeline

What happened to this CVE, newest first.

2026
Source status changed · Received → Awaiting Analysis
Oct 23, 2026 · NIST National Vulnerability Database
Affected products added · nationalsecurityagency/ghidra
Oct 22, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 22, 2026
CVSS changed · 5.5
Oct 22, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 22, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 22, 2026 · Alertas do Telegram
CVE published
Oct 22, 2026 · VulnCheck

Source activity

Repeated readings are counted rather than listed.

2× References added · Oct 22, 2026 – Oct 23, 2026
1× Official description updated · Oct 22, 2026 – Oct 22, 2026

References

7 on the record

github.com/NationalSecurityAgency/ghidra/commit/b0762c3e728a6a26d80ed4943c2efd53
patch, NIST National Vulnerability Database
github.com/advisories/GHSA-hmjg-837r-prfv
GitHub Security Advisories
github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-fvwx-pwq5-3738
vendor-advisory, NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2026-115395
GitHub Security Advisories
github.com/NationalSecurityAgency/ghidra/releases/tag/Ghidra_12.2_build
release-notes, NIST National Vulnerability Database
github.com/NationalSecurityAgency/ghidra
product, NIST National Vulnerability Database
www.vulncheck.com/advisories/ghidra-10.3-before-12.2-denial-of-service-via-themereader-
third-party-advisory, NIST National Vulnerability Database

Elsewhere on this site

Nationalsecurityagency
every CVE for this vendor

Denial of service
same class

CWE-770
other pages naming this weakness

Related CVEs (same products)

Low CVE-2026-116012 Ghidra before 12.2 Integer Truncation in PackedDecode::skipAttribute Decompiler Parser 5d
Medium CVE-2026-115503 Ghidra before 12.2 Denial of Service via Compressed Extension Archive 6d
Medium CVE-2026-115398 Ghidra before 12.2 Denial of Service via TAR and ZIP File System Mount 6d
Medium CVE-2026-115397 Ghidra before 12.2 Denial of Service via Extension Archive Install 6d
Medium CVE-2026-115394 Ghidra through 12.2 Denial of Service via BinaryField Memory Allocation 6d
Medium CVE-2026-115396 Ghidra 10.3 before 12.2 Denial of Service via Compressed Theme Archive 6d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-115395 is "Ghidra 10.3 before 12.2 Denial of Service via ThemeReader.readZipTheme()", rated Medium. It affects Ghidra (Nationalsecurityagency); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.5 describes technical severity. EPSS 0.12% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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